Hermetically-sealed receptacle.



J. C. BOWERS.

HERMETICALLY SEALED RECEPTACLE.

APPLICATION FILED MAY 1'9, 191!- Patented Nov. 23, 1915.

5] vwc wtoz tlhllli hi A lFei JOHN C. BQWERS, 0F BOSTON, MASSACHUSET' HERMETIGALLY-SEALED RECEPTACLE.

Tl .161 ,dslli.

original application filed November 19, 1908, Serial No. 463,414. Divided and this application filed.

19, 1911. Serial No. 628,279.

To (1N 'Uf/ L077I it 27103] concern:

Be it lniown-that l, JOHN C. Bownns, a citizen of the United States, residing in Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Hermetically- Sealed Receptacles, oi which the following is a full, clear, and exact specification.

lily invention relates particularly to the hermetic sealing of cans, boxesitnd otheireceptacles made from sheet metal, wherein the other seaming flange and the sealing strip is conformed to the groove and ridge thus formed, so as to provide a tight joint wherein the sealing stripiis held firmly in place. l he groove and ridge are preferably formed at the time otapplying thestrip to the sealing flan'gef i c This application is a division of application Serial Nog ltiiidld, filed byme on November, 19th,1908, in which application there broadly claimed the feature of a pair of single thickness mating indented flanges and a pair of sealing flanges mating therewith.

The present invention is directed to the locking strip engaging an inwardly facing shoulder on each of pair of single thickness sealing flanges, the sealing strip mating with such flanges.

My application Serial No. 628,280, filed on the date of the filing 0t this application is also a division of the same parent applica tion in. which divisional application there is claimed-the i'eature ofhaving a free edge of the sealing strip seated in it groove in one of the seaming flanges and ofbne of the flanges of the sealing strip overlying and mating with the seaming flange.

In the accompanying drawing 1 have shown a practicable embodiment ,of the invention. In this illustration my'iinprovements are shown applied to a tin box of a kind commonly employed in packing fish,"

Specification of Letters Patent.

their final form.

then be removed.

Patented Nov. 23, 1915..

May

meat, and the like. This term of receptacle is selected merely for convenience of illustratron.

Figure l is a perspective view of a. tin box or can, the general term of which is well known, but which has my improvements ap plied thereto. Fig. 2 is a vertical central section of Fig. 1, taken on a, plane at about the line 2-2: Fig. 3 is a perspective view of the receptacle showing. the sealing strip partly detached. Fig. i is an enlarged detail view, in section, showing the. seaming flanges of the receptacle and closure with the sealing strip applied thei'etmbut before the strip and flanges have been bent into Fig. 5 is a similar view showing the parts after they have been bent into their final form, and. Fig. 6 is view showing the reversal of theparts shown in Fig. 5, the sealing strip being shown extend ing inside the rear of the closure.

The box A. is shown having at its upper edge n seaming flange a, projecting outward y from the box. The closure B, herein illustrated is formed with a central depressed portion 6, surrounded by side walls b, which lie close to the vertical walls. of the box A, near its upper end, and an outwardly projecting seaming flange Z1 which surrounds the cover and overlaps the seaming flange a, of the bodyA.

The manner in which thecover may be applied to the body of the receptacle is illus trated in F ig. 5, the flat face of the flange 2'1 resting on the flat face of the flange a. After the seaming flanges have been superposed one upon the other, a sealing strip 1),

is reinovably applied to the seaming flanges.

This strip is preferably made oil thin malleable metal which may be easily beat and formed .into' shape, which shape will be maintained during shipment and storage. The strip will be so applied that when it is desired to remove it and force is applied it willmyield and separate from the joint. Upon removal of the strip the closure may The strip D, before being connected with the receptacle, is preferably substantially U- shaped in crosssection and is provided with flanges (Z, d, between which is a channel to receive the seaming flanges. The arch of the sealing strip in the present illustration coversithe free outwardly directed edges of the seaming'fianges. The channel is shown sufl'iciently wideto allow the flanges to enter and approximately fill it. The strip is made entirely to surround the joint. One end of the strip is shown overlapping the other end,

' formed rolls or dies will compress the strip which overlapping may be in the form of a tongue E.

{lifter the parts have been loosely assembled, suitable mechanism, such as properly into these. The free edges of the superposed flanges are covered by the sealing strip and held in place by the oflsets in the flanges,

the inward face of the groove and the inward face of the rib which are located inwardly of such edges. The flanges are formed with indentations, flange a. with a rib producing a shoulder '1, and a corre.-'.

sponding groove y. in flange 6 By the operation above describcd,cin forming the rib y and the groove'y in the seaming flanges, the sealing strip. is given a similar or corresponding formation; that is'to say',

it is formed with a shoulder or rib 2, which enters the" groove 3 in the seam and a groove 2, into which fits the shoulder or rib' y, on the flange a, of the seam. By a single operation between properly formed dies or rolls,; the sealing strip is applied to the seaming flanges which are shouldered in such manner asto prevent the strip from accidentally slipping ofl from the flanges,

and also an air-tight joint is made, makin the useof solder unnecessary either for seal ing or securing purposes.

In F'g. 6 the edge'of the sealing strip is bent inwardly atd to overlie the edgeor face I) of the closure portion and aflord an additional locking feature of the device.

Having thus described -my invention I claim: g

1. The combination with a receptacle pro,

- vided with an outwardly disposed flange having two zones occupying substantially the same plane and an intermediate groove;

of a cover having a recess and awiange mating with the flange of the receptacle, and a fastening member having two united flanges overlying said first mentioned flanges and mating therewith, the edge of one ofthe fastening member flanges having a trans versely disposed edge extending within the recess of the cover 2. An easily opened air tight receptacle comprising a can body having an outwardly extending flanges about its open end, a cover having a depressed portion fitting within the open end of the can body, and having holding the sealing strip in position.

a flange adapted to overlie the flange on the can body, and a readily removable sealing 6v strip comprising athin channel-shaped member of malleable metal inclosing said'flanges, one flange of said sealing strip being bent down to form a transversely disposed por-' tion extending within the depressed portion of the cover and engaging the side wall of the same.

3. An easily opened air tight receptacle comprising a can body having an outwardly extending flange about its open cnd,,a over having a depressed portion fitting in the open end of said can body and having an outwardly extending flange superimposed on. the flange of the canbody, and a readily removable sealing strip comprising a chan- 8t nel-shaped piece of thin malleable sheetmetal embracing said flanges, the flanges on said can body and cover and both flanges oi: said sealing strip being coincidently bent to form interlocking shoulders.

4'. A seam for receptacles COllPllSlIlQ flanges on thereceptacle parts and a readily" removable sealing strip embracing said i flanges, said sealing strip comprising a channel-shaped piece of thin malleable metal, said receptacle flanges and both flanges of said sealing strip being coin idently bent to form interlocking shoulders toxlssist in re tainin said sealingstrip in position.

5. g seam for receptacles cmnprising 9a flanges of substantially uniform thiclmess on the receptacle parts and a readily remc v able sealing strip embracing said flanges, said ealing strip'comprising a channel -f lirfll'ltd I piece-of thin malleable metal, the flanges of said receptacle parts and a flange oi. said sealing strip being provided with coincident medial grooves forming interlocking parts which assist in seahngthe receptacle and 10b 6. A seam for receptacles com 'irising flanges on the receptacle parts and a readily removable sealing strip embracing the said flanges, said sealing strip comprising a channel-shaped piece of thin malleable metal, 1 the flanges of the receptacle parts and of the sealing strip being bent to form coincident medial grooves forming interlocking parts which assist in sealing the receptacle and" holding theuseali'ng strip imposition, the sealing strip being provided. with a tongue for stripping the same from engagement with the receptacle flanges.

In witness whereof Ihave hereunto set my hand in the presence of two subscribing witnesses.

JOHN o. Bownae 

